3DU4,断路器 4A D Characteristic UL 1077 3 POLE
3DU40,断路器 40A D Characteristic UL 1077 3 POLE
3DU40L,断路器 40.0A Three Pole "D"
3DU40R,断路器 40A D Characteristic UL 1077 3 POLE
3DU4L,断路器 4.0A Three Pole "D"
3DU4R,断路器 4A D Characteristic UL 1077 3 POLE
3DU5,断路器 5A D Characteristic UL 1077 3 POLE
3DU50,断路器 50A D Characteristic UL 1077 3 POLE
